| S04E01 |
An Unexpected Guest |
23 min |
| S04E02 |
Babies, Bunnies and Beards |
23 min |
| S04E03 |
Sally Hunter |
23 min |
| S04E04 |
Quantum Problems and Dead Ends |
23 min |
| S04E05 |
House Arrest |
23 min |
| S04E06 |
The Intruder |
23 min |
| S04E07 |
Mind Games |
23 min |
| S04E08 |
Break-in |
23 min |
| S04E09 |
Relatively Speaking |
23 min |
| S04E10 |
Enemies Within |
23 min |
| S04E11 |
Badika |
23 min |
| S04E12 |
Operation Rockabye |
23 min |
| S04E13 |
Sleepwalkers |
23 min |
| S04E14 |
Saving Anika |
23 min |
| S04E15 |
I Spy |
23 min |
| S04E16 |
Hologram: Unlocked |
23 min |
| S04E17 |
The Missing Piece |
23 min |
| S04E18 |
Testing Times |
23 min |
| S04E19 |
Brainwooshed |
23 min |
| S04E20 |
Showdown |
23 min |